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# Looks v easy .. i am uncomfortable posting here such an easy

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Manager
Joined: 31 May 2006
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Looks v easy .. i am uncomfortable posting here such an easy [#permalink]

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21 Jun 2006, 07:58
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0% (00:00) correct 0% (00:00) wrong based on 0 sessions

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Looks v easy .. i am uncomfortable posting here such an easy question, but even after using a calci am getting wrong ans ... quite intruguing
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VP
Joined: 29 Dec 2005
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Re: GMAT Prep : PS : Discount [#permalink]

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21 Jun 2006, 09:21
ooooppppsss...... edited...

1. (80) + 10 = 90
2. (90 - 9) 1.1 = 89.1
3. 90
4. 90 (1.1) -10 = 89

Last edited by Professor on 21 Jun 2006, 12:04, edited 1 time in total.
Intern
Joined: 22 Dec 2005
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21 Jun 2006, 10:16
B is the correct answer...here is why

internet : total $80 +$10 =$90 store x : total (90-9) + 81*10/100 = 81 + 8.1 = 89.1 store y : total =$90
store z : total (90+ 9) -10 = 89

Hope this helps
VP
Joined: 02 Jun 2006
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21 Jun 2006, 10:21
I came up with $89 Cost calculations are below: Internet : 80 + 10 =$90
Store X : 90- (90x0.1) +(90 - (90x0.1))x0.1) = 90-9+(90-9)x0.1 = 81 + 81x0.1 = 81 + 8.10 = $89.10 Store Y :$90

Store Z : 90 + 90x0.1 -10 = 90+9-10 = 99-10 = $89 Lowest price$89
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